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公开(公告)号：US20230272631A1
公开(公告)日：2023-08-31
申请号：US18005396
申请日：2021-07-09
Applicant: TOPCON CORPORATION
Inventor： Yoshihiro NISHI , Kohei SATO , Takashi TANAKA
CPC classification number: E04G21/1833 , G01C15/004
Abstract: A method using a surveying device 200 and a survey target device 300 includes: performing benchmark measurement including measuring an altitude of a benchmark that serves as a reference height of a batter board; performing stake top measurement including measuring an altitude of a stake top of a batter board stake installed; and performing beam top position display including calculating a difference in height from the stake top of the batter board stake to a beam top based on the reference height of a foundation stored in advance, the altitude of the benchmark, the altitude of the stake top of the batter board stake, and displaying the difference on a terminal device 100.
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公开(公告)号：US11725938B2
公开(公告)日：2023-08-15
申请号：US16917941
申请日：2020-07-01
Applicant: Topcon Corporation
Inventor： You Sasaki
CPC classification number: G01C15/006 , G01C15/06 , G01S7/4817 , G01S17/42
Abstract: Reselection of an instrument point, due to the limited emission range of a scanning laser light, is performed with decreased burden. A total station equipped with a laser scanner has a combined structure of a total station and a laser scanner. The total station equipped with the laser scanner includes a point cloud data acquiring unit, a distance acquiring unit, and an instrument point calculator. The point cloud data acquiring unit acquires point cloud data that is obtained through laser scanning performed by the laser scanner set up at a first instrument point. The distance acquiring unit acquires a distance to the laser scanner of each point in the point cloud data. The instrument point calculator calculates a location of a second instrument point on the basis of an upper limit of the distance.
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公开(公告)号：USD993414S1
公开(公告)日：2023-07-25
申请号：US29753620
申请日：2020-10-01
Applicant: TOPCON CORPORATION
Designer： Thomas Nuzzo
Abstract: FIG. 1 is a top, front, and left side perspective view of a table for optometry showing my new design;
FIG. 2 is a bottom, back, and right side perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a back view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a right side elevational view thereof;
FIG. 8 is a left side elevational view thereof; and,
FIG. 9 is an enlarged view thereof taken from the broken rectangle in FIG. 5.
The broken lines illustrate enlarged portions of the design. None of the broken lines form part of the claimed design.-
公开(公告)号：US11703329B2
公开(公告)日：2023-07-18
申请号：US16985778
申请日：2020-08-05
Applicant: TOPCON CORPORATION
Inventor： Yosuke Okudaira , Akinobu Sugiura , Yasutoshi Aoki
CPC classification number: G01C15/002 , G01C3/02
Abstract: Provided is a surveying instrument configured so that the optical axis of a guide light irradiation unit that irradiates guide light for guiding a survey operator and the optical axis of a lens barrel portion of a distance-measuring optical system become parallel to each other on a horizontal plane. The guide light irradiation unit is not disposed above the lens barrel portion that substantially matches a collimation direction is horizontally shifted with respect to the lens barrel portion. The horizontal shift distance D is configured so that a horizontal distance D between the optical axis of guide light and the optical axis of the lens barrel portion satisfies tan(α/2)×Cmin>D provided that α is an irradiation angle of the guide light in the horizontal direction, and Cmin is a shortest use distance of the surveying instrument.
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公开(公告)号：US20230160694A1
公开(公告)日：2023-05-25
申请号：US17991730
申请日：2022-11-21
Applicant: TOPCON CORPORATION
Inventor： Takeshi KIKUCHI
CPC classification number: G01C15/002 , G01S17/42
Abstract: Provided is a survey assistance system including a measuring instrument; an eyewear display device including a display; and at least one processor configured to synchronize a coordinate space of the eyewear display device, a coordinate space of the measuring instrument, and a coordinate space of an absolute coordinate system and displays an image in the absolute coordinate system created by the processor on the display with superimposing the image on a site landscape. The processor is configured to read out survey process data, create a work assistance image based on the survey process data, and enable observation of the work assistance image including the instrument installation points and images of the surveying instrument to be used showing installed states at the instrument installation points by superimposing the work assistance image on the site landscape.
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Patent Agency Ranking
公开(公告)号：US20230126808A1
公开(公告)日：2023-04-27
申请号：US17970245
申请日：2022-10-20
Applicant: TOPCON CORPORATION
Inventor： Takeshi KIKUCHI
Abstract: Provided is an error prediction apparatus including at least one processor and at least one memory configured to receive environment data of a surveying site in which a surveying instrument is installed, to input the environment data of the surveying site into an error prediction model and predict a predicted error that occurs in a surveying result obtained by the surveying instrument under an environment of the surveying site, and to create display data for displaying the predicted error when the predicted error exceeds an allowable value. The error prediction model is a learned model created by machine learning for a surveying instrument of the same model as the surveying instrument by using a set of the environment data indicating an environment of the time of surveying and error data in a surveying result as teacher data.
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公开(公告)号：US20230097350A1
公开(公告)日：2023-03-30
申请号：US17950221
申请日：2022-09-22
Applicant: TOPCON CORPORATION
Inventor： Nobuyuki Nishita , Junki Kaneko
IPC: G01C15/00
Abstract: A surveying system comprises a height measuring device and a high-low measuring device. The high-low measuring device comprises an object measured by the height measuring device, a distance measurement sensor which is provided in a known relationship with the object and measures a distance to a construction surface, a projecting device for projecting a high-low information, and an arithmetic control module, the arithmetic control module calculates a high-low information of the construction surface based on a height information of the object measured by the height measuring device and a distance information measured by the distance measurement sensor, and the projecting device projects the high-low information onto the construction surface.
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公开(公告)号：US20230093886A1
公开(公告)日：2023-03-30
申请号：US17943593
申请日：2022-09-13
Applicant: TOPCON CORPORATION
Inventor： Takeshi KIKUCHI
IPC: G01N3/303
Abstract: Provided is a hammering test system. A hammering test system includes a hammering test device including a target, a traveling mechanism for automatically traveling on a to-be-tested surface, a marking mechanism configured to perform marking on the to-be-tested surface, an adsorbing mechanism for adsorbing to the to-be-tested surface, and a hammering test mechanism configured to conduct a hammering test on the to-be-tested surface, and a surveying instrument capable of performing automatic tracking and distance and angle measurements of the target. A hammering test is conducted by causing the hammering test device to travel to a desired position while adsorbing to a to-be-tested surface by the adsorbing mechanism. When it is determined that there is an abnormality, a marking is marked on the to-be-tested surface. The surveying instrument automatically tracks the target, and when conducting a hammering test, makes distance and angle measurements of the target.
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公开(公告)号：US20230081870A1
公开(公告)日：2023-03-16
申请号：US17931138
申请日：2022-09-12
Applicant: TOPCON CORPORATION
Inventor： Hideki MORITA , Yoshikatsu TOKUDA
Abstract: Scanning density of laser scanning is increased at low cost. A laser scanning apparatus includes a horizontal rotation unit and a controller. The horizontal rotation unit determines an area of laser scanning. The controller controls rotation of the horizontal rotation unit. The horizontal rotation unit is rotated while the laser scanning is performed, whereby scanning using laser scanning light is performed in a vertical angle direction at a predetermined interval. The controller makes the horizontal rotation unit repeatedly rotate multiple times in angular ranges that partially overlap one another, in order to perform the laser scanning multiple times on areas of the laser scanning that overlap one another. Start positions of the rotation of multiple times of the horizontal rotation unit are successively shifted by a predetermined amount. The predetermined amount of shifting corresponds to a distance shorter than the predetermined interval.
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公开(公告)号：US11598854B2
公开(公告)日：2023-03-07
申请号：US16398437
申请日：2019-04-30
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Kaoru Kumagai
Abstract: A surveying system comprises an object to be measured having a retro-reflector and a surveying instrument main body for emitting a distance measuring light and performing a measurement based on a reflected distance measuring light, wherein the surveying instrument main body comprises a distance measuring light projecting module, a photodetector, a measuring unit, an optical axis deflector which has a reference optical axis and deflects a distance measuring optical axis, a projecting direction detecting module which detects a deflection angle and a deflection angle direction of the distance measuring optical axis, and an arithmetic control module, and wherein the arithmetic control module is configured to control the optical axis deflector, to perform a two-dimensional scan with the distance measuring light, to detect the deflection angle direction of the distance measuring light at a moment of detecting a photodetecting signal by the projecting direction detecting module, and to move an approximate center of the two-dimensional scan in the detected deflection angle direction.
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